# Relationship history for MSHA mine 0502338

Current hierarchy: **General Atomics Uranium Resources → Cotter Corp → C-CM-25**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Taminco Inc → C-CM-25; 1950-01-01 to 1984-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Taylor Robert → C-CM-25; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Taylor Robert → Taminco Inc; 1950-01-01 to 1984-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Commonwealth Edison Company → C-CM-25; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cotter Corp → C-CM-25; 1984-08-08 to 2000-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Commonwealth Edison Company → Cotter Corp; 1984-08-08 to 2000-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Cotter Corp → C-CM-25; 2000-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** General Atomics Uranium Resources → C-CM-25; 2000-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** General Atomics Uranium Resources → Cotter Corp; 2000-02-18 to current/open; source msha-controller-operator-history